Submission¶

Put the ipynb file and html file in the github branch you created in the last assignment and submit the link to the commit in brightspace

In [2]:
from plotly.offline import init_notebook_mode
import plotly.io as pio
import plotly.express as px

init_notebook_mode(connected=True)
pio.renderers.default = "plotly_mimetype+notebook"
In [3]:
#load data
df = px.data.gapminder()
df.head()
Out[3]:
country continent year lifeExp pop gdpPercap iso_alpha iso_num
0 Afghanistan Asia 1952 28.801 8425333 779.445314 AFG 4
1 Afghanistan Asia 1957 30.332 9240934 820.853030 AFG 4
2 Afghanistan Asia 1962 31.997 10267083 853.100710 AFG 4
3 Afghanistan Asia 1967 34.020 11537966 836.197138 AFG 4
4 Afghanistan Asia 1972 36.088 13079460 739.981106 AFG 4

Question 1:¶

Recreate the barplot below that shows the population of different continents for the year 2007.

Hints:

  • Extract the 2007 year data from the dataframe. You have to process the data accordingly
  • use plotly bar
  • Add different colors for different continents
  • Sort the order of the continent for the visualisation. Use axis layout setting
  • Add text to each bar that represents the population
In [4]:
df = px.data.gapminder()
df = df.loc[df['year'] == 2007]
df = df.groupby('continent').sum()
fig1 = px.bar(df, x="pop", y=df.index, orientation='h', color=["orange", "red","green", "blue","purple"], text_auto='.2s')
fig1.update_layout(barmode='stack', yaxis={'categoryorder':'total descending'})

fig1.show()

Question 2:¶

Sort the order of the continent for the visualisation

Hint: Use axis layout setting

In [11]:
df = px.data.gapminder()
df = df.loc[df['year'] == 2007]
df = df.groupby('continent').sum()
fig1 = px.bar(df, x="pop", y=df.index, orientation='h', color=["orange", "red","green", "blue","purple"], text_auto='.2s')
fig1.update_layout(barmode='stack', yaxis={'categoryorder':'total descending'})

fig1.show()

Question 3:¶

Add text to each bar that represents the population

In [12]:
df = px.data.gapminder()
df = df.loc[df['year'] == 2007]
df = df.groupby('continent').sum()
fig1 = px.bar(df, x="pop", y=df.index, orientation='h', color=["orange", "red","green", "blue","purple"], text_auto='.2s')
fig1.update_layout(barmode='stack', yaxis={'categoryorder':'total descending'})

fig1.show()

Question 4:¶

Thus far we looked at data from one year (2007). Lets create an animation to see the population growth of the continents through the years

In [9]:
df = px.data.gapminder()
fig = px.bar(df, x="continent", y="pop", animation_frame="year", color="continent", hover_name="country",
        range_y=[0,4000000000])

fig["layout"].pop("updatemenus") # optional, drop animation buttons
fig.show()

Question 5:¶

Instead of the continents, lets look at individual countries. Create an animation that shows the population growth of the countries through the years

In [13]:
df = px.data.gapminder()
fig = px.bar(df, x="country", y="pop", animation_frame="year", animation_group="country", color="continent", hover_name="country",
        range_y=[0,1000000000])

fig["layout"].pop("updatemenus") # optional, drop animation buttons
fig.update_layout(barmode='stack', xaxis={'categoryorder':'total descending'})

Question 6:¶

Clean up the country animation. Set the height size of the figure to 1000 to have a better view of the animation

In [14]:
# YOUR CODE HERE
df = px.data.gapminder()
fig = px.bar(df, x="country", y="pop", animation_frame="year", animation_group="country", color="continent", hover_name="country",
        range_y=[0,2000000000], height=1000)

fig["layout"].pop("updatemenus") # optional, drop animation buttons
fig.update_layout(barmode='stack', xaxis={'categoryorder':'total descending'})

Question 7:¶

Show only the top 10 countries in the animation

Hint: Use the axis limit to set this.

In [15]:
# YOUR CODE HERE 

# YOUR CODE HERE
df = px.data.gapminder()
fig = px.bar(df, x="country", y="pop", animation_frame="year", animation_group="country", color="continent", hover_name="country",
        range_y=[0,2000000000], height=400 , width = 1000)

fig["layout"].pop("updatemenus") # optional, drop animation buttons
fig.update_layout(barmode='stack', xaxis={'categoryorder':'total descending'})
fig.update_xaxes(range=(-0.5, 9.5))
fig.show()
In [ ]: